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feat(renderer): add runtime shader and shadow mode controls

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Introduce user-controllable shader on/off, shadow mode (rotated Poisson disk, 3x3 grid, or off), light cull face, and discard transparent in depth pass. Expose all settings in new dev panel "shader" tab. Move ambient strength slider to the new tab.
This commit is contained in:
zhenyan121
2026-06-17 20:16:20 +08:00
parent 74b0aebc9f
commit e224110452
6 changed files with 174 additions and 102 deletions
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77
assets/shaders/block_f_shader.glsl
View File

@@ -12,6 +12,8 @@ layout (binding = 1) uniform sampler2DArray samp;
uniform float ambientStrength;
uniform vec3 sunlightColor;
uniform vec3 sunlightDir;
uniform bool shader_on;
uniform int shadowMode;
const vec2 poissonDisk[8] = vec2[](
vec2( 0.1440, 0.7659), vec2(-0.5761, 0.4479),
@@ -43,50 +45,67 @@ float ShadowCalculation(vec4 fragPosLightSpace, vec3 norm, vec3 lightDir)
0.0003,
0.001 * (1.0 - dot(norm, lightDir))
);
vec3 seed = vert_pos * 37.0 + sin(vert_pos * 91.7) * 13.0;
float angle = random(seed) * 6.2831853;; // 2*PI
float s = sin(angle), c = cos(angle);
mat2 rot = mat2(c, -s, s, c);
float radius = 0.7;
if (shadowMode == 0) {
vec3 seed = vert_pos * 37.0 + sin(vert_pos * 91.7) * 13.0;
float angle = random(seed) * 6.2831853;; // 2*PI
float s = sin(angle), c = cos(angle);
mat2 rot = mat2(c, -s, s, c);
const int samples = 8;
for (int i = 0; i < samples; ++i) {
vec2 offset = rot * poissonDisk[i] * radius * texelSize;
float pcfDepth = texture(shadowMap, projCoords.xy + offset).r;
shadow += (currentDepth - bias > pcfDepth ? 1.0 : 0.0);
}
shadow /= float(samples);
/*
for (int x = -1; x <= 1; ++x) {
for (int y = -1; y <= 1; ++y) {
vec2 offset = vec2(x, y) * texelSize;
float radius = 0.7;
const int samples = 8;
for (int i = 0; i < samples; ++i) {
vec2 offset = rot * poissonDisk[i] * radius * texelSize;
float pcfDepth = texture(shadowMap, projCoords.xy + offset).r;
shadow += (currentDepth - bias > pcfDepth ? 1.0 : 0.0);
}
}
shadow /= 9.0;
*/
// pcf off
//float pcfDepth =
//texture(shadowMap, projCoords.xy).r;
shadow /= float(samples);
} else if (shadowMode == 1) {
for (int x = -1; x <= 1; ++x) {
for (int y = -1; y <= 1; ++y) {
vec2 offset = vec2(x, y) * texelSize;
float pcfDepth = texture(shadowMap, projCoords.xy + offset).r;
shadow += (currentDepth - bias > pcfDepth ? 1.0 : 0.0);
}
}
shadow /= 9.0;
} else if (shadowMode == 2) {
// pcf off
float pcfDepth =
texture(shadowMap, projCoords.xy).r;
//shadow =
// currentDepth - bias > pcfDepth
// ? 1.0
// : 0.0;
shadow =
currentDepth - bias > pcfDepth
? 1.0
: 0.0;
} else {
float pcfDepth =
texture(shadowMap, projCoords.xy).r;
shadow =
currentDepth - bias > pcfDepth
? 1.0
: 0.0;
}
return shadow;
}
void main(void) {
vec4 objectColor = texture(samp, vec3(tc, tex_layer));
if (objectColor.a < 0.8) {
discard;
}
if (!shader_on) {
color = objectColor;
return;
}
vec3 lightDir = normalize(-sunlightDir);

10
assets/shaders/depth_fragment_shader.glsl
View File

@@ -4,9 +4,13 @@ in vec2 tc;
flat in int tex_layer;
layout (binding = 1) uniform sampler2DArray samp;
uniform bool is_discard_tranparent;
void main() {
vec4 texColor = texture(samp, vec3(tc, tex_layer));
if (texColor.a < 0.8)
discard;
if (is_discard_tranparent) {
vec4 texColor = texture(samp, vec3(tc, tex_layer));
if (texColor.a < 0.8)
discard;
}
//gl_FragDepth = gl_FragCoord.z;
}