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particles: Return uniform density spheres.

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This matches the previous change for cpu_particles.
This commit is contained in:
Simon Puchert 2019-07-06 20:05:43 +02:00
parent 18ba1bc824
commit 5fc8691176
1 changed files with 4 additions and 1 deletions
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5
scene/resources/particles_material.cpp
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@ -332,7 +332,10 @@ void ParticlesMaterial::_update_shader() {
//do none
} break;
case EMISSION_SHAPE_SPHERE: {
code += " TRANSFORM[3].xyz = normalize(vec3(rand_from_seed(alt_seed) * 2.0 - 1.0, rand_from_seed(alt_seed) * 2.0 - 1.0, rand_from_seed(alt_seed) * 2.0 - 1.0)) * emission_sphere_radius;\n";
code += " float s = rand_from_seed(alt_seed) * 2.0 - 1.0;\n";
code += " float t = rand_from_seed(alt_seed) * 2.0 * pi;\n";
code += " float radius = emission_sphere_radius * sqrt(1.0 - s * s);\n";
code += " TRANSFORM[3].xyz = vec3(radius * cos(t), radius * sin(t), emission_sphere_radius * s);\n";
} break;
case EMISSION_SHAPE_BOX: {
code += " TRANSFORM[3].xyz = vec3(rand_from_seed(alt_seed) * 2.0 - 1.0, rand_from_seed(alt_seed) * 2.0 - 1.0, rand_from_seed(alt_seed) * 2.0 - 1.0) * emission_box_extents;\n";