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steam

This commit is contained in:
Orion Reed 2024-12-15 11:26:17 -05:00
parent b45933e40e
commit 0f37f80f59
1 changed files with 35 additions and 25 deletions
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60
src/folk-sand.glsl.ts
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@ -7,15 +7,16 @@ import { glsl } from './common/tags.ts';
const CONSTANTS = glsl`
#define AIR 0.0
#define SMOKE 1.0
#define WATER 2.0
#define LAVA 3.0
#define SAND 4.0
#define PLANT 5.0
#define STONE 6.0
#define WALL 7.0
#define STEAM 1.0
#define SMOKE 2.0
#define WATER 3.0
#define LAVA 4.0
#define SAND 5.0
#define PLANT 6.0
#define STONE 7.0
#define WALL 8.0
#define ICE 9.0
#define COLLISION 99.0
#define ICE 8.0
const vec3 bgColor = pow(vec3(31, 34, 36) / 255.0, vec3(2));
`;
@ -246,6 +247,9 @@ vec4 createParticle(float id)
hsl.y += (r.x - 0.5) * 0.1; // Slight saturation variation
hsl.z *= (r.y * 0.2 + 0.8); // Brightness variation
return vec4(HSLtoRGB(hsl), ICE);
} else if (id == STEAM)
{
return vec4(mix(bgColor, vec3(0.8, 0.8, 0.8), 0.5), STEAM); // Whiter than smoke
}
return vec4(bgColor, AIR);
}
@ -303,12 +307,21 @@ void main() {
vec4 r = hash43(vec3(p, frame));
if ((t01.a == SMOKE && t11.a < SMOKE ||
t01.a < SMOKE && t11.a == SMOKE) && r.x < 0.25)
t01.a < SMOKE && t11.a == SMOKE ||
t01.a == STEAM && t11.a < STEAM ||
t01.a < STEAM && t11.a == STEAM) && r.x < 0.25)
{
swap(t01, t11);
}
if ((t01.a == STEAM && t11.a < STEAM ||
t01.a < STEAM && t11.a == STEAM) && r.x < 0.25)
{
swap(t01, t11);
}
if (t00.a == SMOKE)
if (t00.a == SMOKE || t00.a == STEAM)
{
if (t01.a < t00.a && r.y < 0.25)
{
@ -316,9 +329,11 @@ void main() {
} else if (r.z < 0.003)
{
t00 = vec4(bgColor, AIR);
} else if (t00.a == STEAM && r.w < 0.001) { // Small chance for steam to condense
t00 = createParticle(WATER);
}
}
if (t10.a == SMOKE)
if (t10.a == SMOKE || t10.a == STEAM)
{
if (t11.a < t10.a && r.y < 0.25)
{
@ -326,6 +341,8 @@ void main() {
} else if (r.z < 0.003)
{
t10 = vec4(bgColor, AIR);
} else if (t10.a == STEAM && r.w < 0.001) { // Small chance for steam to condense
t10 = createParticle(WATER);
}
}
@ -711,11 +728,11 @@ void main() {
if (t01.a == LAVA || t10.a == LAVA)
{
if (r.x < 0.2) { // 20% chance to melt per frame
t00 = createParticle(WATER);
// Create some steam
t00 = createParticle(STEAM);
// Create additional steam from the lava contact points
if (r.y < 0.5) {
if (t01.a == LAVA) t01 = createParticle(SMOKE);
if (t10.a == LAVA) t10 = createParticle(SMOKE);
if (t01.a == LAVA) t01 = createParticle(STEAM);
if (t10.a == LAVA) t10 = createParticle(STEAM);
}
}
}
@ -727,10 +744,10 @@ void main() {
if (t11.a == LAVA || t00.a == LAVA)
{
if (r.x < 0.2) {
t10 = createParticle(WATER);
t10 = createParticle(STEAM);
if (r.y < 0.5) {
if (t11.a == LAVA) t11 = createParticle(SMOKE);
if (t00.a == LAVA) t00 = createParticle(SMOKE);
if (t11.a == LAVA) t11 = createParticle(STEAM);
if (t00.a == LAVA) t00 = createParticle(STEAM);
}
}
}
@ -759,13 +776,6 @@ void main() {
}
}
// Make ice behave like a solid (similar to stone) when not melting
if (t01.a == ICE || t11.a == ICE)
{
// Ice doesn't fall or move unless melted
// This is handled by not adding any movement behavior
}
fragColor = i == 0 ? t00 :
i == 1 ? t10 :
i == 2 ? t01 : t11;