From d3ba7c10fc52b6d1f6c04b88cf8333b87462d786 Mon Sep 17 00:00:00 2001 From: stele Date: Sun, 13 Dec 2020 21:24:36 +0100 Subject: [PATCH] Detail normalmap shaders @Jan21 --- shaders/mat_detail_normalmap.frag | 81 +++++++++++ shaders/mat_detail_normalmap_specgloss.frag | 89 ++++++++++++ shaders/mat_detail_parallax.frag | 134 +++++++++++++++++++ shaders/mat_detail_parallax_specgloss.frag | 141 ++++++++++++++++++++ 4 files changed, 445 insertions(+) create mode 100644 shaders/mat_detail_normalmap.frag create mode 100644 shaders/mat_detail_normalmap_specgloss.frag create mode 100644 shaders/mat_detail_parallax.frag create mode 100644 shaders/mat_detail_parallax_specgloss.frag diff --git a/shaders/mat_detail_normalmap.frag b/shaders/mat_detail_normalmap.frag new file mode 100644 index 00000000..85f55289 --- /dev/null +++ b/shaders/mat_detail_normalmap.frag @@ -0,0 +1,81 @@ +in vec3 f_normal; +in vec2 f_coord; +in vec4 f_pos; +in mat3 f_tbn; + +in vec4 f_clip_pos; +in vec4 f_clip_future_pos; + +#include + +layout(location = 0) out vec4 out_color; +#if MOTIONBLUR_ENABLED +layout(location = 1) out vec4 out_motion; +#endif + +#param (color, 0, 0, 4, diffuse) +#param (diffuse, 1, 0, 1, diffuse) +#param (specular, 1, 1, 1, specular) +#param (reflection, 1, 2, 1, one) +#param (glossiness, 1, 3, 1, glossiness) +#param (detail_scale, 2, 0, 1, one) +#param (detail_height_scale, 2, 1, 1, one) + +#texture (diffuse, 0, sRGB_A) +uniform sampler2D diffuse; + +#texture (normalmap, 1, RGBA) +uniform sampler2D normalmap; + +#texture (detailnormalmap, 2, RGBA) +uniform sampler2D detailnormalmap; + +#define NORMALMAP +#include +#include +#include + +void main() +{ + vec4 tex_color = texture(diffuse, f_coord); + + bool alphatestfail = ( opacity >= 0.0 ? (tex_color.a < opacity) : (tex_color.a >= -opacity) ); + if(alphatestfail) + discard; + + vec3 fragcolor = ambient; + + vec4 normal_map = texture(normalmap, f_coord); + vec4 detailnormal_map = texture(detailnormalmap, f_coord * param[2].x); + vec3 normal; + vec3 normaldetail; + + normaldetail.xy = detailnormal_map.rg* 2.0 - 1.0; + normaldetail.z = sqrt(1.0 - clamp((dot(normaldetail.xy, normaldetail.xy)), 0.0, 1.0)); + normaldetail.xyz = normaldetail.xyz * param[2].y; + normal.xy = normal_map.rg* 2.0 - 1.0; + normal.z = sqrt(1.0 - clamp((dot(normal.xy, normal.xy)), 0.0, 1.0)); + + vec3 fragnormal = normalize(f_tbn * normalize(vec3(normal.xy + normaldetail.xy, normal.z))); + + + float reflblend = (normal_map.a + detailnormal_map.a); + float reflectivity = reflblend > 1.0 ? param[1].z * 1.0 : param[1].z * reflblend; + float specularity = (tex_color.r + tex_color.g + tex_color.b) * 0.5; + + fragcolor = apply_lights(fragcolor, fragnormal, tex_color.rgb, reflectivity, specularity, shadow_tone); + vec4 color = vec4(apply_fog(fragcolor), tex_color.a * alpha_mult); +#if POSTFX_ENABLED + out_color = color; +#else + out_color = tonemap(color); +#endif +#if MOTIONBLUR_ENABLED + { + vec2 a = (f_clip_future_pos.xy / f_clip_future_pos.w) * 0.5 + 0.5;; + vec2 b = (f_clip_pos.xy / f_clip_pos.w) * 0.5 + 0.5;; + + out_motion = vec4(a - b, 0.0f, 0.0f); + } +#endif +} diff --git a/shaders/mat_detail_normalmap_specgloss.frag b/shaders/mat_detail_normalmap_specgloss.frag new file mode 100644 index 00000000..f2c30763 --- /dev/null +++ b/shaders/mat_detail_normalmap_specgloss.frag @@ -0,0 +1,89 @@ +in vec3 f_normal; +in vec2 f_coord; +in vec4 f_pos; +in mat3 f_tbn; + +in vec4 f_clip_pos; +in vec4 f_clip_future_pos; + +#include + +layout(location = 0) out vec4 out_color; +#if MOTIONBLUR_ENABLED +layout(location = 1) out vec4 out_motion; +#endif + +#param (color, 0, 0, 4, diffuse) +#param (diffuse, 1, 0, 1, diffuse) +#param (specular, 1, 1, 1, specular) +#param (reflection, 1, 2, 1, one) +#param (glossiness, 1, 3, 1, glossiness) +#param (detail_scale, 2, 0, 1, one) +#param (detail_height_scale, 2, 1, 1, one) + +#texture (diffuse, 0, sRGB_A) +uniform sampler2D diffuse; + +#texture (normalmap, 1, RGBA) +uniform sampler2D normalmap; + +#texture (detailnormalmap, 2, RGBA) +uniform sampler2D detailnormalmap; + +#texture (specgloss, 3, RGBA) +uniform sampler2D specgloss; + +#define NORMALMAP +#include +#include +#include + +void main() +{ + vec4 tex_color = texture(diffuse, f_coord); + + bool alphatestfail = ( opacity >= 0.0 ? (tex_color.a < opacity) : (tex_color.a >= -opacity) ); + if(alphatestfail) + discard; +// if (tex_color.a < opacity) +// discard; + + vec3 fragcolor = ambient; + + vec4 normal_map = texture(normalmap, f_coord); + vec4 detailnormal_map = texture(detailnormalmap, f_coord * param[2].x); + vec4 specgloss_map = texture(specgloss, f_coord); + vec3 normal; + vec3 normaldetail; + + normaldetail.xy = detailnormal_map.rg* 2.0 - 1.0; + normaldetail.z = sqrt(1.0 - clamp((dot(normaldetail.xy, normaldetail.xy)), 0.0, 1.0)); + normaldetail.xyz = normaldetail.xyz * param[2].y; + normal.xy = normal_map.rg* 2.0 - 1.0; + normal.z = sqrt(1.0 - clamp((dot(normal.xy, normal.xy)), 0.0, 1.0)); + + vec3 fragnormal = normalize(f_tbn * normalize(vec3(normal.xy + normaldetail.xy, normal.z))); + + float reflblend = (normal_map.a + detailnormal_map.a); + float reflectivity = reflblend > 1.0 ? param[1].z * 1.0 : param[1].z * reflblend; + float specularity = specgloss_map.r; + glossiness = specgloss_map.g * abs(param[1].w); + metalic = (specgloss_map.b > 0.5) ? true : false; + + + fragcolor = apply_lights(fragcolor, fragnormal, tex_color.rgb, reflectivity, specularity, shadow_tone); + vec4 color = vec4(apply_fog(fragcolor), tex_color.a * alpha_mult); +#if POSTFX_ENABLED + out_color = color; +#else + out_color = tonemap(color); +#endif +#if MOTIONBLUR_ENABLED + { + vec2 a = (f_clip_future_pos.xy / f_clip_future_pos.w) * 0.5 + 0.5;; + vec2 b = (f_clip_pos.xy / f_clip_pos.w) * 0.5 + 0.5;; + + out_motion = vec4(a - b, 0.0f, 0.0f); + } +#endif +} diff --git a/shaders/mat_detail_parallax.frag b/shaders/mat_detail_parallax.frag new file mode 100644 index 00000000..75919b13 --- /dev/null +++ b/shaders/mat_detail_parallax.frag @@ -0,0 +1,134 @@ +in vec3 f_normal; +in vec2 f_coord; +in vec4 f_pos; +in mat3 f_tbn; //tangent matrix nietransponowany; mnożyć przez f_tbn dla TangentLightPos; TangentViewPos; TangentFragPos; +in vec4 f_clip_pos; +in vec4 f_clip_future_pos; +in vec3 TangentFragPos; + +#include + +layout(location = 0) out vec4 out_color; +#if MOTIONBLUR_ENABLED +layout(location = 1) out vec4 out_motion; +#endif + + +#param (color, 0, 0, 4, diffuse) +#param (diffuse, 1, 0, 1, diffuse) +#param (specular, 1, 1, 1, specular) +#param (reflection, 1, 2, 1, one) +#param (glossiness, 1, 3, 1, glossiness) +#param (detail_scale, 2, 0, 1, one) +#param (detail_height_scale, 2, 1, 1, one) +#param (height_scale, 2, 2, 1, zero) +#param (height_offset, 2, 3, 1, zero) + +#texture (diffuse, 0, sRGB_A) +uniform sampler2D diffuse; + +#texture (normalmap, 1, RGBA) +uniform sampler2D normalmap; + +#texture (detailnormalmap, 2, RGBA) +uniform sampler2D detailnormalmap; + +#define PARALLAX +#include +#include +#include + +vec2 ParallaxMapping(vec2 f_coord, vec3 viewDir); + +void main() +{ + //parallax mapping + vec3 viewDir = normalize(-TangentFragPos); //tangent view pos - tangent frag pos + vec2 f_coord_p = ParallaxMapping(f_coord, viewDir); + vec4 normal_map = texture(normalmap, f_coord_p); + vec4 detailnormal_map = texture(detailnormalmap, f_coord_p * param[2].x); + vec4 tex_color = texture(diffuse, f_coord_p); + + bool alphatestfail = ( opacity >= 0.0 ? (tex_color.a < opacity) : (tex_color.a >= -opacity) ); + if(alphatestfail) + discard; +// if (tex_color.a < opacity) +// discard; + + vec3 fragcolor = ambient; + + vec3 normal; + vec3 normaldetail; + + normaldetail.xy = detailnormal_map.rg* 2.0 - 1.0; + normaldetail.z = sqrt(1.0 - clamp((dot(normaldetail.xy, normaldetail.xy)), 0.0, 1.0)); + normaldetail.xyz = normaldetail.xyz * param[2].y; + normal.xy = normal_map.rg* 2.0 - 1.0; + normal.z = sqrt(1.0 - clamp((dot(normal.xy, normal.xy)), 0.0, 1.0)); + + vec3 fragnormal = normalize(f_tbn * normalize(vec3(normal.xy + normaldetail.xy, normal.z))); + float reflectivity = param[1].z * normal_map.a; + float specularity = (tex_color.r + tex_color.g + tex_color.b) * 0.5; + + fragcolor = apply_lights(fragcolor, fragnormal, tex_color.rgb, reflectivity, specularity, shadow_tone); + + vec4 color = vec4(apply_fog(fragcolor), tex_color.a * alpha_mult); +#if POSTFX_ENABLED + out_color = color; +#else + out_color = tonemap(color); +#endif +#if MOTIONBLUR_ENABLED + { + vec2 a = (f_clip_future_pos.xy / f_clip_future_pos.w) * 0.5 + 0.5;; + vec2 b = (f_clip_pos.xy / f_clip_pos.w) * 0.5 + 0.5;; + + out_motion = vec4(a - b, 0.0f, 0.0f); + } +#endif +} + +vec2 ParallaxMapping(vec2 f_coord, vec3 viewDir) +{ + float pos_len = length(f_pos.xyz); + + if (pos_len > 100.0) { + return f_coord; + } + +#if EXTRAEFFECTS_ENABLED + const float minLayers = 8.0; + const float maxLayers = 32.0; + float LayersWeight = pos_len / 20.0; + vec2 currentTexCoords = f_coord; + float currentDepthMapValue = texture(normalmap, currentTexCoords).b; + LayersWeight = min(abs(dot(vec3(0.0, 0.0, 1.0), viewDir)),LayersWeight); + float numLayers = mix(maxLayers, minLayers, clamp(LayersWeight, 0.0, 1.0)); // number of depth layers + float layerDepth = 1.0 / numLayers; // calculate the size of each layer + float currentLayerDepth = 0.0; // depth of current layer + vec2 P = viewDir.xy * param[2].z; // the amount to shift the texture coordinates per layer (from vector P) + vec2 deltaTexCoords = P / numLayers; + + + while(currentLayerDepth < currentDepthMapValue) + { + currentTexCoords -= deltaTexCoords; // shift texture coordinates along direction of P + currentDepthMapValue = texture(normalmap, currentTexCoords).b; // get depthmap value at current texture coordinates + currentLayerDepth += layerDepth; // get depth of next layer + } + + vec2 prevTexCoords = currentTexCoords + deltaTexCoords; // get texture coordinates before collision (reverse operations) + + float afterDepth = currentDepthMapValue - currentLayerDepth; // get depth after and before collision for linear interpolation + float beforeDepth = texture(normalmap, prevTexCoords).b - currentLayerDepth + layerDepth; + + float weight = afterDepth / (afterDepth - beforeDepth); // interpolation of texture coordinates + vec2 finalTexCoords = prevTexCoords * weight + currentTexCoords * (1.0 - weight); + + return finalTexCoords; +#else + float height = texture(normalmap, f_coord).b; + vec2 p = viewDir.xy / viewDir.z * (height * (param[2].z - param[2].w) * 0.2); + return f_coord - p; +#endif +} diff --git a/shaders/mat_detail_parallax_specgloss.frag b/shaders/mat_detail_parallax_specgloss.frag new file mode 100644 index 00000000..40d914f6 --- /dev/null +++ b/shaders/mat_detail_parallax_specgloss.frag @@ -0,0 +1,141 @@ +in vec3 f_normal; +in vec2 f_coord; +in vec4 f_pos; +in mat3 f_tbn; //tangent matrix nietransponowany; mnożyć przez f_tbn dla TangentLightPos; TangentViewPos; TangentFragPos; +in vec4 f_clip_pos; +in vec4 f_clip_future_pos; +in vec3 TangentFragPos; + +#include + +layout(location = 0) out vec4 out_color; +#if MOTIONBLUR_ENABLED +layout(location = 1) out vec4 out_motion; +#endif + + +#param (color, 0, 0, 4, diffuse) +#param (diffuse, 1, 0, 1, diffuse) +#param (specular, 1, 1, 1, specular) +#param (reflection, 1, 2, 1, one) +#param (glossiness, 1, 3, 1, glossiness) +#param (detail_scale, 2, 0, 1, one) +#param (detail_height_scale, 2, 1, 1, one) +#param (height_scale, 2, 2, 1, zero) +#param (height_offset, 2, 3, 1, zero) + +#texture (diffuse, 0, sRGB_A) +uniform sampler2D diffuse; + +#texture (normalmap, 1, RGBA) +uniform sampler2D normalmap; + +#texture (specgloss, 2, RGBA) +uniform sampler2D specgloss; + +#texture (detailnormalmap, 3, RGBA) +uniform sampler2D detailnormalmap; + + +#define PARALLAX +#include +#include +#include + +vec2 ParallaxMapping(vec2 f_coord, vec3 viewDir); + +void main() +{ + //parallax mapping + vec3 viewDir = normalize(vec3(0.0f, 0.0f, 0.0f) - TangentFragPos); //tangent view pos - tangent frag pos + vec2 f_coord_p = ParallaxMapping(f_coord, viewDir); + + vec4 normal_map = texture(normalmap, f_coord_p); + vec4 detailnormal_map = texture(detailnormalmap, f_coord_p * param[2].x); + vec4 tex_color = texture(diffuse, f_coord_p); + vec4 specgloss_map = texture(specgloss, f_coord_p); + + bool alphatestfail = ( opacity >= 0.0 ? (tex_color.a < opacity) : (tex_color.a >= -opacity) ); + if(alphatestfail) + discard; + + vec3 fragcolor = ambient; + + vec3 normal; + vec3 normaldetail; + + normaldetail.xy = detailnormal_map.rg* 2.0 - 1.0; + normaldetail.z = sqrt(1.0 - clamp((dot(normaldetail.xy, normaldetail.xy)), 0.0, 1.0)); + normaldetail.xyz = normaldetail.xyz * param[2].y; + normal.xy = normal_map.rg* 2.0 - 1.0; + normal.z = sqrt(1.0 - clamp((dot(normal.xy, normal.xy)), 0.0, 1.0)); + + vec3 fragnormal = normalize(f_tbn * normalize(vec3(normal.xy + normaldetail.xy, normal.z))); + float reflectivity = param[1].z * normal_map.a; + float specularity = specgloss_map.r; + glossiness = specgloss_map.g * abs(param[1].w); + metalic = (specgloss_map.b > 0.5) ? true : false; + + fragcolor = apply_lights(fragcolor, fragnormal, tex_color.rgb, reflectivity, specularity, shadow_tone); + + vec4 color = vec4(apply_fog(fragcolor), tex_color.a * alpha_mult); +#if POSTFX_ENABLED + out_color = color; +#else + out_color = tonemap(color); +#endif +#if MOTIONBLUR_ENABLED + { + vec2 a = (f_clip_future_pos.xy / f_clip_future_pos.w) * 0.5 + 0.5;; + vec2 b = (f_clip_pos.xy / f_clip_pos.w) * 0.5 + 0.5;; + + out_motion = vec4(a - b, 0.0f, 0.0f); + } +#endif +} + +vec2 ParallaxMapping(vec2 f_coord, vec3 viewDir) +{ + + float pos_len = length(f_pos.xyz); + + if (pos_len > 100.0) { + return f_coord; + } + +#if EXTRAEFFECTS_ENABLED + const float minLayers = 8.0; + const float maxLayers = 32.0; + float LayersWeight = pos_len / 20.0; + vec2 currentTexCoords = f_coord; + float currentDepthMapValue = texture(normalmap, currentTexCoords).b; + LayersWeight = min(abs(dot(vec3(0.0, 0.0, 1.0), viewDir)),LayersWeight); + float numLayers = mix(maxLayers, minLayers, clamp(LayersWeight, 0.0, 1.0)); // number of depth layers + float layerDepth = 1.0 / numLayers; // calculate the size of each layer + float currentLayerDepth = 0.0; // depth of current layer + vec2 P = viewDir.xy * param[2].z; // the amount to shift the texture coordinates per layer (from vector P) + vec2 deltaTexCoords = P / numLayers; + + + while(currentLayerDepth < currentDepthMapValue) + { + currentTexCoords -= deltaTexCoords; // shift texture coordinates along direction of P + currentDepthMapValue = texture(normalmap, currentTexCoords).b; // get depthmap value at current texture coordinates + currentLayerDepth += layerDepth; // get depth of next layer + } + + vec2 prevTexCoords = currentTexCoords + deltaTexCoords; // get texture coordinates before collision (reverse operations) + + float afterDepth = currentDepthMapValue - currentLayerDepth; // get depth after and before collision for linear interpolation + float beforeDepth = texture(normalmap, currentTexCoords).b; - currentLayerDepth + layerDepth; + + float weight = afterDepth / (afterDepth - beforeDepth); // interpolation of texture coordinates + vec2 finalTexCoords = prevTexCoords * weight + currentTexCoords * (1.0 - weight); + + return finalTexCoords; +#else + float height = normal_map.b; + vec2 p = viewDir.xy / viewDir.z * (height * (param[2].z - param[2].w) * 0.2); + return f_coord - p; +#endif +}