summaryrefslogtreecommitdiff
path: root/drivers/gles2/shaders/canvas.glsl
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gles2/shaders/canvas.glsl')
-rw-r--r--drivers/gles2/shaders/canvas.glsl381
1 files changed, 373 insertions, 8 deletions
diff --git a/drivers/gles2/shaders/canvas.glsl b/drivers/gles2/shaders/canvas.glsl
index 79d4eb2243..0de60d7421 100644
--- a/drivers/gles2/shaders/canvas.glsl
+++ b/drivers/gles2/shaders/canvas.glsl
@@ -2,6 +2,7 @@
[vertex]
#ifdef USE_GLES_OVER_GL
+#define lowp
#define mediump
#define highp
#else
@@ -11,12 +12,40 @@ precision mediump int;
uniform highp mat4 projection_matrix;
/* clang-format on */
+
+#include "stdlib.glsl"
+
uniform highp mat4 modelview_matrix;
uniform highp mat4 extra_matrix;
attribute highp vec2 vertex; // attrib:0
attribute vec4 color_attrib; // attrib:3
attribute vec2 uv_attrib; // attrib:4
+#ifdef USE_SKELETON
+attribute highp vec4 bone_indices; // attrib:6
+attribute highp vec4 bone_weights; // attrib:7
+#endif
+
+#ifdef USE_INSTANCING
+
+attribute highp vec4 instance_xform0; //attrib:8
+attribute highp vec4 instance_xform1; //attrib:9
+attribute highp vec4 instance_xform2; //attrib:10
+attribute highp vec4 instance_color; //attrib:11
+
+#ifdef USE_INSTANCE_CUSTOM
+attribute highp vec4 instance_custom_data; //attrib:12
+#endif
+
+#endif
+
+#ifdef USE_SKELETON
+uniform highp sampler2D skeleton_texture; // texunit:-3
+uniform highp ivec2 skeleton_texture_size;
+uniform highp mat4 skeleton_transform;
+uniform highp mat4 skeleton_transform_inverse;
+#endif
+
varying vec2 uv_interp;
varying vec4 color_interp;
@@ -31,6 +60,35 @@ uniform vec4 src_rect;
uniform highp float time;
+#ifdef USE_LIGHTING
+
+// light matrices
+uniform highp mat4 light_matrix;
+uniform highp mat4 light_matrix_inverse;
+uniform highp mat4 light_local_matrix;
+uniform highp mat4 shadow_matrix;
+uniform highp vec4 light_color;
+uniform highp vec4 light_shadow_color;
+uniform highp vec2 light_pos;
+uniform highp float shadowpixel_size;
+uniform highp float shadow_gradient;
+uniform highp float light_height;
+uniform highp float light_outside_alpha;
+uniform highp float shadow_distance_mult;
+
+varying vec4 light_uv_interp;
+varying vec2 transformed_light_uv;
+varying vec4 local_rot;
+
+#ifdef USE_SHADOWS
+varying highp vec2 pos;
+#endif
+
+const bool at_light_pass = true;
+#else
+const bool at_light_pass = false;
+#endif
+
/* clang-format off */
VERTEX_SHADER_GLOBALS
@@ -50,6 +108,16 @@ void main() {
vec4 color = color_attrib;
+#ifdef USE_INSTANCING
+ mat4 extra_matrix_instance = extra_matrix * transpose(mat4(instance_xform0, instance_xform1, instance_xform2, vec4(0.0, 0.0, 0.0, 1.0)));
+ color *= instance_color;
+ vec4 instance_custom = instance_custom_data;
+
+#else
+ mat4 extra_matrix_instance = extra_matrix;
+ vec4 instance_custom = vec4(0.0);
+#endif
+
#ifdef USE_TEXTURE_RECT
if (dst_rect.z < 0.0) { // Transpose is encoded as negative dst_rect.z
@@ -72,12 +140,7 @@ void main() {
#else
vec4 outvec = vec4(vertex.xy, 0.0, 1.0);
-#ifdef USE_UV_ATTRIBUTE
uv_interp = uv_attrib;
-#else
- uv_interp = vertex.xy;
-#endif
-
#endif
{
@@ -90,7 +153,7 @@ VERTEX_SHADER_CODE
}
#if !defined(SKIP_TRANSFORM_USED)
- outvec = extra_matrix * outvec;
+ outvec = extra_matrix_instance * outvec;
outvec = modelview_matrix * outvec;
#endif
@@ -100,13 +163,60 @@ VERTEX_SHADER_CODE
outvec.xy = floor(outvec + 0.5).xy;
#endif
+#ifdef USE_SKELETON
+
+ // look up transform from the "pose texture"
+ if (bone_weights != vec4(0.0)) {
+
+ highp mat4 bone_transform = mat4(0.0);
+
+ for (int i = 0; i < 4; i++) {
+ ivec2 tex_ofs = ivec2(int(bone_indices[i]) * 2, 0);
+
+ highp mat4 b = mat4(
+ texel2DFetch(skeleton_texture, skeleton_texture_size, tex_ofs + ivec2(0, 0)),
+ texel2DFetch(skeleton_texture, skeleton_texture_size, tex_ofs + ivec2(1, 0)),
+ vec4(0.0, 0.0, 1.0, 0.0),
+ vec4(0.0, 0.0, 0.0, 1.0));
+
+ bone_transform += b * bone_weights[i];
+ }
+
+ mat4 bone_matrix = skeleton_transform * transpose(bone_transform) * skeleton_transform_inverse;
+
+ outvec = bone_matrix * outvec;
+ }
+
+#endif
+
gl_Position = projection_matrix * outvec;
+
+#ifdef USE_LIGHTING
+
+ light_uv_interp.xy = (light_matrix * outvec).xy;
+ light_uv_interp.zw = (light_local_matrix * outvec).xy;
+
+ transformed_light_uv = (mat3(light_matrix_inverse) * vec3(light_uv_interp.zw, 0.0)).xy; //for normal mapping
+
+#ifdef USE_SHADOWS
+ pos = outvec.xy;
+#endif
+
+ local_rot.xy = normalize((modelview_matrix * (extra_matrix_instance * vec4(1.0, 0.0, 0.0, 0.0))).xy);
+ local_rot.zw = normalize((modelview_matrix * (extra_matrix_instance * vec4(0.0, 1.0, 0.0, 0.0))).xy);
+#ifdef USE_TEXTURE_RECT
+ local_rot.xy *= sign(src_rect.z);
+ local_rot.zw *= sign(src_rect.w);
+#endif
+
+#endif
}
/* clang-format off */
[fragment]
#ifdef USE_GLES_OVER_GL
+#define lowp
#define mediump
#define highp
#else
@@ -128,7 +238,7 @@ uniform vec4 final_modulate;
#ifdef SCREEN_TEXTURE_USED
-uniform sampler2D screen_texture; // texunit:-3
+uniform sampler2D screen_texture; // texunit:-4
#endif
@@ -138,6 +248,40 @@ uniform vec2 screen_pixel_size;
#endif
+#ifdef USE_LIGHTING
+
+uniform highp mat4 light_matrix;
+uniform highp mat4 light_local_matrix;
+uniform highp mat4 shadow_matrix;
+uniform highp vec4 light_color;
+uniform highp vec4 light_shadow_color;
+uniform highp vec2 light_pos;
+uniform highp float shadowpixel_size;
+uniform highp float shadow_gradient;
+uniform highp float light_height;
+uniform highp float light_outside_alpha;
+uniform highp float shadow_distance_mult;
+
+uniform lowp sampler2D light_texture; // texunit:-4
+varying vec4 light_uv_interp;
+varying vec2 transformed_light_uv;
+
+varying vec4 local_rot;
+
+#ifdef USE_SHADOWS
+
+uniform highp sampler2D shadow_texture; // texunit:-5
+varying highp vec2 pos;
+
+#endif
+
+const bool at_light_pass = true;
+#else
+const bool at_light_pass = false;
+#endif
+
+uniform bool use_default_normal;
+
/* clang-format off */
FRAGMENT_SHADER_GLOBALS
@@ -156,15 +300,236 @@ void main() {
#ifdef SCREEN_UV_USED
vec2 screen_uv = gl_FragCoord.xy * screen_pixel_size;
#endif
+
+ vec3 normal;
+
+#if defined(NORMAL_USED)
+
+ bool normal_used = true;
+#else
+ bool normal_used = false;
+#endif
+
+ if (use_default_normal) {
+ normal.xy = texture2D(normal_texture, uv_interp).xy * 2.0 - 1.0;
+ normal.z = sqrt(1.0 - dot(normal.xy, normal.xy));
+ normal_used = true;
+ } else {
+ normal = vec3(0.0, 0.0, 1.0);
+ }
+
{
+ float normal_depth = 1.0;
+
+#if defined(NORMALMAP_USED)
+ vec3 normal_map = vec3(0.0, 0.0, 1.0);
+ normal_used = true;
+#endif
+
/* clang-format off */
FRAGMENT_SHADER_CODE
/* clang-format on */
- }
+#if defined(NORMALMAP_USED)
+ normal = mix(vec3(0.0, 0.0, 1.0), normal_map * vec3(2.0, -2.0, 1.0) - vec3(1.0, -1.0, 0.0), normal_depth);
+#endif
+ }
color *= final_modulate;
+#ifdef USE_LIGHTING
+
+ vec2 light_vec = transformed_light_uv;
+
+ if (normal_used) {
+ normal.xy = mat2(local_rot.xy, local_rot.zw) * normal.xy;
+ }
+
+ float att = 1.0;
+
+ vec2 light_uv = light_uv_interp.xy;
+ vec4 light = texture2D(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,
+ real_light_height,
+ real_light_color,
+ light_uv,
+ real_light_shadow_color,
+ normal,
+ uv,
+#if defined(SCREEN_UV_USED)
+ screen_uv,
+#endif
+ color);
+#endif
+
+ light *= real_light_color;
+
+ if (normal_used) {
+ vec3 light_normal = normalize(vec3(light_vec, -real_light_height));
+ light *= max(dot(-light_normal, normal), 0.0);
+ }
+
+ color *= light;
+
+#ifdef USE_SHADOWS
+ light_vec = light_uv_interp.zw; //for shadows
+ float angle_to_light = -atan(light_vec.x, light_vec.y);
+ float PI = 3.14159265358979323846264;
+ /*int i = int(mod(floor((angle_to_light+7.0*PI/6.0)/(4.0*PI/6.0))+1.0, 3.0)); // +1 pq os indices estao em ordem 2,0,1 nos arrays
+ float ang*/
+
+ float su, sz;
+
+ float abs_angle = abs(angle_to_light);
+ vec2 point;
+ float sh;
+ if (abs_angle < 45.0 * PI / 180.0) {
+ point = light_vec;
+ sh = 0.0 + (1.0 / 8.0);
+ } else if (abs_angle > 135.0 * PI / 180.0) {
+ point = -light_vec;
+ sh = 0.5 + (1.0 / 8.0);
+ } else if (angle_to_light > 0.0) {
+
+ point = vec2(light_vec.y, -light_vec.x);
+ sh = 0.25 + (1.0 / 8.0);
+ } else {
+
+ point = vec2(-light_vec.y, light_vec.x);
+ sh = 0.75 + (1.0 / 8.0);
+ }
+
+ highp vec4 s = shadow_matrix * vec4(point, 0.0, 1.0);
+ s.xyz /= s.w;
+ su = s.x * 0.5 + 0.5;
+ sz = s.z * 0.5 + 0.5;
+ //sz=lightlength(light_vec);
+
+ highp float shadow_attenuation = 0.0;
+
+#ifdef USE_RGBA_SHADOWS
+
+#define SHADOW_DEPTH(m_tex, m_uv) dot(texture2D((m_tex), (m_uv)), vec4(1.0 / (256.0 * 256.0 * 256.0), 1.0 / (256.0 * 256.0), 1.0 / 256.0, 1))
+
+#else
+
+#define SHADOW_DEPTH(m_tex, m_uv) (texture2D((m_tex), (m_uv)).r)
+
+#endif
+
+#ifdef SHADOW_USE_GRADIENT
+
+#define SHADOW_TEST(m_ofs) \
+ { \
+ highp float sd = SHADOW_DEPTH(shadow_texture, vec2(m_ofs, sh)); \
+ shadow_attenuation += 1.0 - smoothstep(sd, sd + shadow_gradient, sz); \
+ }
+
+#else
+
+#define SHADOW_TEST(m_ofs) \
+ { \
+ highp float sd = SHADOW_DEPTH(shadow_texture, vec2(m_ofs, sh)); \
+ shadow_attenuation += step(sz, sd); \
+ }
+
+#endif
+
+#ifdef SHADOW_FILTER_NEAREST
+
+ SHADOW_TEST(su);
+
+#endif
+
+#ifdef SHADOW_FILTER_PCF3
+
+ SHADOW_TEST(su + shadowpixel_size);
+ SHADOW_TEST(su);
+ SHADOW_TEST(su - shadowpixel_size);
+ shadow_attenuation /= 3.0;
+
+#endif
+
+#ifdef SHADOW_FILTER_PCF5
+
+ SHADOW_TEST(su + shadowpixel_size * 2.0);
+ SHADOW_TEST(su + shadowpixel_size);
+ SHADOW_TEST(su);
+ SHADOW_TEST(su - shadowpixel_size);
+ SHADOW_TEST(su - shadowpixel_size * 2.0);
+ shadow_attenuation /= 5.0;
+
+#endif
+
+#ifdef SHADOW_FILTER_PCF7
+
+ SHADOW_TEST(su + shadowpixel_size * 3.0);
+ SHADOW_TEST(su + shadowpixel_size * 2.0);
+ SHADOW_TEST(su + shadowpixel_size);
+ SHADOW_TEST(su);
+ SHADOW_TEST(su - shadowpixel_size);
+ SHADOW_TEST(su - shadowpixel_size * 2.0);
+ SHADOW_TEST(su - shadowpixel_size * 3.0);
+ shadow_attenuation /= 7.0;
+
+#endif
+
+#ifdef SHADOW_FILTER_PCF9
+
+ SHADOW_TEST(su + shadowpixel_size * 4.0);
+ SHADOW_TEST(su + shadowpixel_size * 3.0);
+ SHADOW_TEST(su + shadowpixel_size * 2.0);
+ SHADOW_TEST(su + shadowpixel_size);
+ SHADOW_TEST(su);
+ SHADOW_TEST(su - shadowpixel_size);
+ SHADOW_TEST(su - shadowpixel_size * 2.0);
+ SHADOW_TEST(su - shadowpixel_size * 3.0);
+ SHADOW_TEST(su - shadowpixel_size * 4.0);
+ shadow_attenuation /= 9.0;
+
+#endif
+
+#ifdef SHADOW_FILTER_PCF13
+
+ SHADOW_TEST(su + shadowpixel_size * 6.0);
+ SHADOW_TEST(su + shadowpixel_size * 5.0);
+ SHADOW_TEST(su + shadowpixel_size * 4.0);
+ SHADOW_TEST(su + shadowpixel_size * 3.0);
+ SHADOW_TEST(su + shadowpixel_size * 2.0);
+ SHADOW_TEST(su + shadowpixel_size);
+ SHADOW_TEST(su);
+ SHADOW_TEST(su - shadowpixel_size);
+ SHADOW_TEST(su - shadowpixel_size * 2.0);
+ SHADOW_TEST(su - shadowpixel_size * 3.0);
+ SHADOW_TEST(su - shadowpixel_size * 4.0);
+ SHADOW_TEST(su - shadowpixel_size * 5.0);
+ SHADOW_TEST(su - shadowpixel_size * 6.0);
+ shadow_attenuation /= 13.0;
+
+#endif
+
+ //color *= shadow_attenuation;
+ color = mix(real_light_shadow_color, color, shadow_attenuation);
+//use shadows
+#endif
+ }
+
+//use lighting
+#endif
+
gl_FragColor = color;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-14 00:56:02 +0000