Merge pull request #17391 from PJB3005/18-03-09-fix-canvas-light-shaders
Fixes canvas light shaders.
This commit is contained in:
commit
9a4110a451
3 changed files with 35 additions and 29 deletions
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@ -795,7 +795,6 @@ ShaderCompilerGLES3::ShaderCompilerGLES3() {
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actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT_HEIGHT"] = "light_height";
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actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT_COLOR"] = "light_color";
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actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT_UV"] = "light_uv";
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//actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT_SHADOW_COLOR"]="light_shadow_color";
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actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT"] = "light";
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actions[VS::SHADER_CANVAS_ITEM].renames["SHADOW_COLOR"] = "shadow_color";
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@ -805,9 +804,7 @@ ShaderCompilerGLES3::ShaderCompilerGLES3() {
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actions[VS::SHADER_CANVAS_ITEM].usage_defines["SCREEN_PIXEL_SIZE"] = "@SCREEN_UV";
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actions[VS::SHADER_CANVAS_ITEM].usage_defines["NORMAL"] = "#define NORMAL_USED\n";
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actions[VS::SHADER_CANVAS_ITEM].usage_defines["NORMALMAP"] = "#define NORMALMAP_USED\n";
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actions[VS::SHADER_CANVAS_ITEM].usage_defines["SHADOW_COLOR"] = "#define SHADOW_COLOR_USED\n";
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actions[VS::SHADER_CANVAS_ITEM].usage_defines["LIGHT"] = "#define USE_LIGHT_SHADER_CODE\n";
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actions[VS::SHADER_CANVAS_ITEM].render_mode_defines["skip_vertex_transform"] = "#define SKIP_TRANSFORM_USED\n";
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/** SPATIAL SHADER **/
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@ -285,7 +285,19 @@ MATERIAL_UNIFORMS
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FRAGMENT_SHADER_GLOBALS
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void light_compute(inout vec4 light,vec2 light_vec,float light_height,vec4 light_color,vec2 light_uv,vec4 shadow,vec3 normal,vec2 uv,vec2 screen_uv,vec4 color) {
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void light_compute(
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inout vec4 light,
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inout vec2 light_vec,
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inout float light_height,
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inout vec4 light_color,
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vec2 light_uv,
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inout vec4 shadow_color,
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vec3 normal,
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vec2 uv,
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#if defined(SCREEN_UV_USED)
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vec2 screen_uv,
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#endif
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vec4 color) {
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#if defined(USE_LIGHT_SHADER_CODE)
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@ -462,39 +474,41 @@ FRAGMENT_SHADER_CODE
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float att=1.0;
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vec2 light_uv = light_uv_interp.xy;
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vec4 light = texture(light_texture,light_uv) * light_color;
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#if defined(SHADOW_COLOR_USED)
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vec4 shadow_color=vec4(0.0,0.0,0.0,0.0);
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#endif
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vec4 light = texture(light_texture,light_uv);
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if (any(lessThan(light_uv_interp.xy,vec2(0.0,0.0))) || any(greaterThanEqual(light_uv_interp.xy,vec2(1.0,1.0)))) {
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color.a*=light_outside_alpha; //invisible
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} else {
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float real_light_height = light_height;
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vec4 real_light_color = light_color;
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vec4 real_light_shadow_color = light_shadow_color;
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#if defined(USE_LIGHT_SHADER_CODE)
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//light is written by the light shader
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light_compute(light,light_vec,light_height,light_color,light_uv,shadow,normal,uv,screen_uv,color);
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light_compute(
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light,
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light_vec,
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real_light_height,
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real_light_color,
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light_uv,
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real_light_shadow_color,
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normal,
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uv,
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#if defined(SCREEN_UV_USED)
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screen_uv,
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#endif
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color);
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#endif
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#else
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light *= real_light_color;
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if (normal_used) {
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vec3 light_normal = normalize(vec3(light_vec,-light_height));
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vec3 light_normal = normalize(vec3(light_vec,-real_light_height));
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light*=max(dot(-light_normal,normal),0.0);
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}
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color*=light;
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/*
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#ifdef USE_NORMAL
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color.xy=local_rot.xy;//normal.xy;
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color.zw=vec2(0.0,1.0);
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#endif
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*/
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//light shader code
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#endif
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#ifdef USE_SHADOWS
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@ -634,13 +648,8 @@ FRAGMENT_SHADER_CODE
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#endif
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#if defined(SHADOW_COLOR_USED)
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color=mix(shadow_color,color,shadow_attenuation);
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#else
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//color*=shadow_attenuation;
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color=mix(light_shadow_color,color,shadow_attenuation);
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#endif
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color=mix(real_light_shadow_color,color,shadow_attenuation);
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//use shadows
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#endif
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}
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@ -207,7 +207,7 @@ ShaderTypes::ShaderTypes() {
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shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"].built_ins["SCREEN_TEXTURE"] = constt(ShaderLanguage::TYPE_SAMPLER2D);
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shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"].can_discard = true;
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shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["POSITION"] = constt(ShaderLanguage::TYPE_VEC2);
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shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["FRAGCOORD"] = constt(ShaderLanguage::TYPE_VEC4);
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shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["NORMAL"] = constt(ShaderLanguage::TYPE_VEC3);
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shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["UV"] = constt(ShaderLanguage::TYPE_VEC2);
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shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["COLOR"] = constt(ShaderLanguage::TYPE_VEC4);
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