Use draw_quad outside the window / render on bmap

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Re: Use draw_quad outside the window / render on bmap [Re: Benni003] #455216
10/13/15 15:49 10/13/15 15:49

Joined: Jun 2007
Posts: 1,337
Hiporope and its pain

txesmi

Serious User

txesmi

Serious User

Joined: Jun 2007
Posts: 1,337
Hiporope and its pain

Glad of been helpful

Maybe you need to encrease the zbuffer meassures. The render target and the source map need to be meassured square of two.

Code:

bmap_zbuffer ( bmap_createblack ( 4096, 2048, 32 ) );

The example is a zoom in, yes. That was the first step: converting the screen coords to map coords.

Now I am adding a fake anisotropy by 3x3 gaussian cubic samples to the shader but I get little inacuracies on the process. I am not sure if it comes from variable inacuracies or from that dx9 offset that has to be applied and I don't master xP

Anyway, this multisample method gives a pretty good zooming out results up to 1:4 scale. For smaller scales it will need more samples.

main.c

Code:

#include <acknex.h>

// Material skills
#define skPosX       skill9  // X coord relative to the center of the map in map coords (centered on the screen)
#define skPosY       skill10 // Y coord
#define skScale      skill11 // scale of the map
#define skScaleNext  skill12 // needed a map scale smooth transition variable

void main ()
{
	video_mode = 10;
	mouse_mode = 4;
	fps_max = 60;
	wait(1);
	
	BMAP *bmpMap = bmap_create ( "grid.tga" );
	BMAP *bmpScreen = bmap_createblack ( screen_size.x, screen_size.y, 24 );
	PANEL *panScreen = pan_create ( "flags=SHOW", 1 );
	panScreen->bmap = bmpScreen;
	MATERIAL *mtlCamMap = mtl_create ();
	mtlCamMap->skPosX = 0;
	mtlCamMap->skPosY = 0;
	mtlCamMap->skScale = 1;
	mtlCamMap->skScaleNext = mtlCamMap->skScale;
	effect_load ( mtlCamMap, "display_map.fx" );
	
	mtlCamMap->skill4 = floatd ( bmap_height(bmpScreen) * bmap_width(bmpMap), bmap_width(bmpScreen) * bmap_height(bmpMap) );
	var nProp = bmap_width(bmpScreen) / bmap_width(bmpMap);
	
	while ( !key_esc )
	{
		if ( mouse_left )
		{
			mtlCamMap->skPosX += mickey.x / mtlCamMap->skScale;
			mtlCamMap->skPosY += mickey.y / mtlCamMap->skScale;
		}
		if ( mickey.z > 0 )
		{
			mtlCamMap->skScaleNext = minv ( mtlCamMap->skScaleNext * 1.414, 2 ); // 1.414 ~= sqrt(2)
		}
		if ( mickey.z < 0 )
		{
			mtlCamMap->skScaleNext = maxv ( mtlCamMap->skScaleNext / 1.414, 0.25 );
		}
		mtlCamMap->skScale += ( mtlCamMap->skScaleNext - mtlCamMap->skScale ) * time_step * 0.5;
		
		mtlCamMap->skill1 = floatd ( mtlCamMap->skPosX, bmap_width(bmpMap) );
		mtlCamMap->skill2 = floatd ( mtlCamMap->skPosY, bmap_height(bmpMap) );
		mtlCamMap->skill3 = floatd ( nProp, mtlCamMap->skScale );
		mtlCamMap->skill5 = floatd ( 0.5, bmap_width(bmpMap) * mtlCamMap->skScale );
		mtlCamMap->skill6 = floatd ( 0.5, bmap_height(bmpMap) * mtlCamMap->skScale );
		bmap_process ( bmpScreen, bmpMap, mtlCamMap );
		
		wait(1);
	}
	
	mtl_remove ( mtlCamMap );
	pan_remove ( panScreen );
	bmap_remove ( bmpScreen );
	bmap_remove ( bmpMap );
	
	sys_exit ( NULL );
}

display_map.fx

Code:

float4 vecSkill1;
float4 vecSkill5;
texture TargetMap;
sampler ColorSampler = sampler_state { Texture = <TargetMap>; MipFilter = Linear; MinFilter = Linear; MagFilter = Linear; AddressU = Clamp; AddressV = Clamp; };

float2 fOffset3x3[9] = { -1,-1, 0,-1, 1,-1, -1,0, 0,0, 1,0, -1,1, 0,1, 1,1 };
float fGauss3x3[9] = { 0.0625, 0.125, 0.0625, 0.125, 0.25, 0.125, 0.0625, 0.125, 0.0625 };

float4 PS ( in float2 inTex: TEXCOORD0 ) : COLOR0
{
	inTex.xy -= 0.5f;
	inTex.xy *= vecSkill1.z;
	inTex.y *= vecSkill1.w;
	inTex.xy += 0.5f - vecSkill1.xy;
	float4 Color = 0;
	for ( int i=0; i<9; i+=1 )
		Color.rgb += tex2D ( ColorSampler, inTex + fOffset3x3[i] * vecSkill5.xy ).rgb * fGauss3x3[i];
	Color.a = 1.0f;
	return Color;
}

technique
{
	pass
	{
		VertexShader = null;
		PixelShader  = compile ps_2_0 PS();
	}
}

Salud!

Last edited by txesmi; 10/14/15 10:18. Reason: bamp_zbuffer syntax error x�

Entire Thread
Subject	Posted By	Posted
Use draw_quad outside the window / render on bmap	Benni003	09/30/15 16:36
Re: Use draw_quad outside the window / render on bmap	Superku	09/30/15 16:55
Re: Use draw_quad outside the window / render on bmap	Benni003	09/30/15 19:01
Re: Use draw_quad outside the window / render on bmap	Anonymous	09/30/15 19:32
Re: Use draw_quad outside the window / render on bmap	Benni003	09/30/15 19:42
Re: Use draw_quad outside the window / render on bmap	Anonymous	09/30/15 20:20
Re: Use draw_quad outside the window / render on bmap	Kartoffel	10/01/15 15:25
Re: Use draw_quad outside the window / render on bmap	Anonymous	10/01/15 16:51
Re: Use draw_quad outside the window / render on bmap	Benni003	10/03/15 12:47
Re: Use draw_quad outside the window / render on bmap	Benni003	10/11/15 09:57
Re: Use draw_quad outside the window / render on bmap	Anonymous	10/11/15 16:38
Re: Use draw_quad outside the window / render on bmap	Benni003	10/11/15 20:46
Re: Use draw_quad outside the window / render on bmap	Anonymous	10/11/15 23:05
Re: Use draw_quad outside the window / render on bmap	Anonymous	10/11/15 23:07
Re: Use draw_quad outside the window / render on bmap	txesmi	10/11/15 23:31
Re: Use draw_quad outside the window / render on bmap	Anonymous	10/12/15 00:18
Re: Use draw_quad outside the window / render on bmap	Benni003	10/12/15 13:55
Re: Use draw_quad outside the window / render on bmap	txesmi	10/12/15 22:32
Re: Use draw_quad outside the window / render on bmap	Benni003	10/13/15 14:32
Re: Use draw_quad outside the window / render on bmap	Benni003	10/13/15 15:13
Re: Use draw_quad outside the window / render on bmap	txesmi	10/13/15 15:49
Re: Use draw_quad outside the window / render on bmap	Benni003	10/13/15 17:01
Re: Use draw_quad outside the window / render on bmap	Superku	10/13/15 17:19
Re: Use draw_quad outside the window / render on bmap	Anonymous	10/13/15 17:27
Re: Use draw_quad outside the window / render on bmap	Benni003	10/13/15 17:31
Re: Use draw_quad outside the window / render on bmap	txesmi	10/14/15 11:18
Re: Use draw_quad outside the window / render on bmap	txesmi	10/14/15 13:39
Re: Use draw_quad outside the window / render on bmap	Benni003	10/14/15 14:36
Re: Use draw_quad outside the window / render on bmap	txesmi	10/14/15 15:18
Re: Use draw_quad outside the window / render on bmap	Benni003	10/14/15 15:50
Re: Use draw_quad outside the window / render on bmap	Anonymous	10/14/15 16:47
Re: Use draw_quad outside the window / render on bmap	Benni003	10/14/15 17:10
Re: Use draw_quad outside the window / render on bmap	Anonymous	10/14/15 18:11
Re: Use draw_quad outside the window / render on bmap	Dico	10/14/15 19:53
Re: Use draw_quad outside the window / render on bmap	Dico	10/14/15 19:55
Re: Use draw_quad outside the window / render on bmap	Wjbender	10/14/15 20:09
Re: Use draw_quad outside the window / render on bmap	Benni003	10/16/15 13:05

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