From 0d2a2a9300333876b5ad5657febd8b9af128692a Mon Sep 17 00:00:00 2001 From: Pieter-Jan Briers Date: Sat, 10 Mar 2018 00:21:38 +0100 Subject: [PATCH] Fixes canvas light shaders. Fixes #16904 Restore more out functionality, fix built-ins. Requested changes, I think? (cherry picked from commit 25ba49fd88ec460a6c4f39f93222671d5e2bab6e) --- drivers/gles3/shader_compiler_gles3.cpp | 3 -- drivers/gles3/shaders/canvas.glsl | 59 ++++++++++++++----------- servers/visual/shader_types.cpp | 2 +- 3 files changed, 35 insertions(+), 29 deletions(-) diff --git a/drivers/gles3/shader_compiler_gles3.cpp b/drivers/gles3/shader_compiler_gles3.cpp index 070c661c8a3..1f3b76f5cd5 100644 --- a/drivers/gles3/shader_compiler_gles3.cpp +++ b/drivers/gles3/shader_compiler_gles3.cpp @@ -795,7 +795,6 @@ ShaderCompilerGLES3::ShaderCompilerGLES3() { actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT_HEIGHT"] = "light_height"; actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT_COLOR"] = "light_color"; actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT_UV"] = "light_uv"; - //actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT_SHADOW_COLOR"]="light_shadow_color"; actions[VS::SHADER_CANVAS_ITEM].renames["LIGHT"] = "light"; actions[VS::SHADER_CANVAS_ITEM].renames["SHADOW_COLOR"] = "shadow_color"; @@ -805,9 +804,7 @@ ShaderCompilerGLES3::ShaderCompilerGLES3() { actions[VS::SHADER_CANVAS_ITEM].usage_defines["SCREEN_PIXEL_SIZE"] = "@SCREEN_UV"; actions[VS::SHADER_CANVAS_ITEM].usage_defines["NORMAL"] = "#define NORMAL_USED\n"; actions[VS::SHADER_CANVAS_ITEM].usage_defines["NORMALMAP"] = "#define NORMALMAP_USED\n"; - actions[VS::SHADER_CANVAS_ITEM].usage_defines["SHADOW_COLOR"] = "#define SHADOW_COLOR_USED\n"; actions[VS::SHADER_CANVAS_ITEM].usage_defines["LIGHT"] = "#define USE_LIGHT_SHADER_CODE\n"; - actions[VS::SHADER_CANVAS_ITEM].render_mode_defines["skip_vertex_transform"] = "#define SKIP_TRANSFORM_USED\n"; /** SPATIAL SHADER **/ diff --git a/drivers/gles3/shaders/canvas.glsl b/drivers/gles3/shaders/canvas.glsl index f436ef06f73..3bbeb1149d4 100644 --- a/drivers/gles3/shaders/canvas.glsl +++ b/drivers/gles3/shaders/canvas.glsl @@ -285,7 +285,19 @@ MATERIAL_UNIFORMS FRAGMENT_SHADER_GLOBALS -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) { +void light_compute( + inout vec4 light, + inout vec2 light_vec, + inout float light_height, + inout vec4 light_color, + vec2 light_uv, + inout vec4 shadow_color, + vec3 normal, + vec2 uv, +#if defined(SCREEN_UV_USED) + vec2 screen_uv, +#endif + vec4 color) { #if defined(USE_LIGHT_SHADER_CODE) @@ -462,39 +474,41 @@ FRAGMENT_SHADER_CODE float att=1.0; vec2 light_uv = light_uv_interp.xy; - vec4 light = texture(light_texture,light_uv) * light_color; -#if defined(SHADOW_COLOR_USED) - vec4 shadow_color=vec4(0.0,0.0,0.0,0.0); -#endif + vec4 light = texture(light_texture,light_uv); if (any(lessThan(light_uv_interp.xy,vec2(0.0,0.0))) || any(greaterThanEqual(light_uv_interp.xy,vec2(1.0,1.0)))) { color.a*=light_outside_alpha; //invisible } else { + float real_light_height = light_height; + vec4 real_light_color = light_color; + vec4 real_light_shadow_color = light_shadow_color; #if defined(USE_LIGHT_SHADER_CODE) //light is written by the light shader - light_compute(light,light_vec,light_height,light_color,light_uv,shadow,normal,uv,screen_uv,color); + light_compute( + light, + light_vec, + real_light_height, + real_light_color, + light_uv, + real_light_shadow_color, + normal, + uv, +#if defined(SCREEN_UV_USED) + screen_uv, +#endif + color); +#endif -#else + light *= real_light_color; if (normal_used) { - - vec3 light_normal = normalize(vec3(light_vec,-light_height)); + vec3 light_normal = normalize(vec3(light_vec,-real_light_height)); light*=max(dot(-light_normal,normal),0.0); } color*=light; -/* -#ifdef USE_NORMAL - color.xy=local_rot.xy;//normal.xy; - color.zw=vec2(0.0,1.0); -#endif -*/ - -//light shader code -#endif - #ifdef USE_SHADOWS @@ -634,13 +648,8 @@ FRAGMENT_SHADER_CODE #endif - -#if defined(SHADOW_COLOR_USED) - color=mix(shadow_color,color,shadow_attenuation); -#else //color*=shadow_attenuation; - color=mix(light_shadow_color,color,shadow_attenuation); -#endif + color=mix(real_light_shadow_color,color,shadow_attenuation); //use shadows #endif } diff --git a/servers/visual/shader_types.cpp b/servers/visual/shader_types.cpp index 90426493375..096064c6c7e 100644 --- a/servers/visual/shader_types.cpp +++ b/servers/visual/shader_types.cpp @@ -207,7 +207,7 @@ ShaderTypes::ShaderTypes() { shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"].built_ins["SCREEN_TEXTURE"] = constt(ShaderLanguage::TYPE_SAMPLER2D); shader_modes[VS::SHADER_CANVAS_ITEM].functions["fragment"].can_discard = true; - shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["POSITION"] = constt(ShaderLanguage::TYPE_VEC2); + shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["FRAGCOORD"] = constt(ShaderLanguage::TYPE_VEC4); shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["NORMAL"] = constt(ShaderLanguage::TYPE_VEC3); shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["UV"] = constt(ShaderLanguage::TYPE_VEC2); shader_modes[VS::SHADER_CANVAS_ITEM].functions["light"].built_ins["COLOR"] = constt(ShaderLanguage::TYPE_VEC4);